Patent US3131082A successfully refreshed from Google Patents.
US3131082A
Expired / Lapsed
US
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Rare earth-iron garnet preparation
Assignee: General Electric Co
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Filing: 1962-02-01
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Granted: 1964-04-28
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Expires: 1982-02-01
Abstract
No abstract record available.
Inventors
- 👤 John R Gambino
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 13:09
CPC Classifications
C; C04; C04B; C04B35/00; C04B35/01; C04B35/26; C04B35/2675; C23; C23C; C23C16/00; C23C16/22; C23C16/30; C23C16/40
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
53 words
A PROCESS FOR PREPARING A HOMOGENEOUS SOLID PHASE OF RARE EARTH-IRON GARNET WHICH COMPRISES CONVERTING RARE EARTH HALIDE AND IRON HALIDE VAPORS IN AN OXYGEN-CONTAINING ATMOSPHERE TO THE OXIDE VAPORS, AND COPRECIPITATING THE OXIDE VAPORS ONTO A SUBSTRATE AT ELEVATED TEMPERATURES EXTENDING FROM APPROXIMATELY 800*C. UP TO THE SINTERING TEMPERATURE OF THE COPRECIPITATE.
Claim 2
Dependent Claim
53 words
A PROCESS FOR PREPARING A HOMOGENEOUS SOLID PHASE OF RARE EARTH-IRON GARNET WHICH COMPRISES CONVERTING RARE EARTH HALIDE AND IRON HALIDE VAPORS IN AN OXYGEN-CONTAINING ATMOSPHERE TO THE OXIDE VAPORS, AND COPRECIPITATING THE OXIDE VAPORS ONTO A SUBSTRATE AT ELEVATED TEMPERATURES EXTENDING FROM APPROXIMATELY 800*C. UP TO THE SINTERING TEMPERATURE OF THE COPRECIPITATE.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-04-28 | 1967-10-28 | 1968-04-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-04-28 | 1971-10-28 | 1972-04-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-04-28 | 1975-10-28 | 1976-04-28 | $7700.00 | Window Closed / Lapsed |